<!DOCTYPE html>
<html>
<head>
    <meta http-equiv="Content-Type" content="text/html;charset=gbk"/>
    <meta http-equiv="X-UA-Compatible" content="IE=8"/>
    <title>Undo/redo</title>
    <link rel="stylesheet" href="../style/default.css"/>
</head>

<body>
<h1>Undo/redo</h1>

<p></p>
<ol>
    <li>
        In case of wrong operation, you can click the Undo button in the quick access bar to restore the
        original state.
        <div>
            <img src="image/btn_undo.png" alt=""/>
        </div>
    </li>
    <li>
        Contrary, if restored too much, you can click the Redo button to reapply the undo-ed operation.
        <div>
            <img src="image/btn_redo.png" alt=""/>
        </div>
    </li>
</ol>
</body>
</html>
